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采用差热分析(DTA)和X射线衍射(XRD)技术研究了球磨燃烧反应发生前不同球磨时间下AlCuO和SiCuO体系反应动力学和微观结构变化。结果表明:高能球磨诱发燃烧反应的发生是粉末颗粒细化和均匀化与局部反应、球磨介质污染两方面竞争的结果。球磨时CuO的缺陷形成速率或者氧离子从CuO点阵中通过短路扩散路径向反应界面迁移是球磨诱发AlCuO燃烧反应的控制步骤。
Differential thermal analysis (DTA) and X-ray diffraction (XRD) techniques were used to study the reaction kinetics and microstructure changes of AlCuO and SiCuO systems at different ball milling time before the ball milling reaction. The results show that the combustion reaction induced by high-energy ball milling is the result of the competition between the refinement and homogenization of powder particles and the local reaction and the contamination of milling media. The rate of defect formation of CuO during ball milling or the migration of oxygen ions from the CuO lattice to the reaction interface through the short-circuit diffusion path is the control step of ball-milling-induced AlCuO combustion reaction.